Car-heater



(N0 Model.)

P. F. MQGEE.

CAR HEATER. No. 380,044. Patented Mar. 27, 1888.

N. PETERS, Pmwumn n m, Washinglan, ac.

UNITED STATES PATENT OFFICE. Y

PATRICK FRANCES MGGEE, OF OREGON CITY, OREGON.

OAR-HEATER.

SPECIFICATION forming part of Letters Patent No. 380,044, dated March 27, 1888.

Application filed April 14, 1887.

.To all whom it may concern:

Be it known that I, PATRICK FRANCES Mo- GEE, a citizen of the United States, residing at Oregon City, in the county of Glackamas and State of Oregon, have invented certain new and useful Improvements in Car-Heaters; and I hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertaius to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form apart ofthis specification.

This invention relates to devices for heating railway-cars; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed, whereby the passenger-cars are heated by hot air contained in pipes connected to a chamber encircling the boiler of the locomotive, from which chamber the supply of hot air is obtained and caused to circulate through the said pipes.

In the drawings, Figure 1 is a side view, partly in section, of alocomotive and a car provided with heating apparatus according to this invention. Fig. 2 is a cross-section through the boiler of the locomotive, showing the airpump and the steam-jet for causing the air to circulate.

A is the boiler of the locomotive, of ordinary construction.

' B is an air-chamber which encircles the body of the boiler, and is continued over the top and sides of the fire-box end of it. This chamber is formed of plates 6, which are supported by the girders I), provided with the perforations b for the passage of air. Bolts b? are provided .for uniting the ends of the semicircular girders which surround the body of the boiler.

The air-chamber may in some cases and at some parts of the boiler only partially surround the boiler; but it is desirable to form'it upon as much of the exposed boiler-plate surface as possible.

0 is an outer covering of asbestus or other similar non-conducting material, which is extended over every portion of the chamber B from which heat might be radiated and escape. The covering 0 may be clothed with the usual ornamental lagging put round boilers.

D is an ordinary air-pump, provided with Serial No. 234,794. (No model.)

the steam-cylinder d or other equivalent device for driving it. This air-pump draws in a supply of air through the pipe (1 and suc tion-valve dfland forces the same through the delivery-valve d and pipe 01* into the lower part of the front end of chamber B. The air becomes highly heated by contact with the plates of the boiler, and passes out of the upper part of the said chamber, at the rear or fire-box end of the boiler, through the pipe E. The pipe E is connected to the main hot-air pipe F, which runs the full length of each car by means of the flexible couplingf, and the main air-pipe of each successive car is connected to the air-pipe of the carin front of it in a similar manner. The main pipe F, is provided with valves f, for regulating the passage of air through it.

a o G G are shunt-pipes provided with regulat- 7 ing-valves g, and connected to the main pipe by the vertical branches 9 at each end of the car, so that more or less effective heating-surface can be obtained, as required.

A steam-jet, c, is inserted in the pipe E, and is connected to the boiler by the pipe 6', provided with the regulating-valve e This steamjet may be used in some instances instead of the air-pump to draw air into the chamber B by suction and propel it through the pipesin the cars; but its chief use is supplemental to the said air-pump, for the purpose of imparting additional heat to the air, to moisten the air, and to propel it through the pipes.

It will also be seen that the air-pump might be arranged to draw the air through the chamber B and force it direct through the pipes in the cars; but the first-described arrangement is considered preferable, in order that the hot air may be propelled as much as possible through the pipes by its own expansion in the chamber B.

H is a pipe by means of which thesuctionpipe (2' of the air-pump may be connected with the main pipe F, and so draw in a supply of air which still retains some portion of its heat. The pipe His provided with regulating-valves h, so that it can be connected with or disconnected from the main pipe F, as desired. f are flexible couplings similar to those in pipe F.

7 What I claim isi 1. The combination of a locomotive-boiler, an outer casing of plates, perforated girders supporting the plates, and thereby forming an air-chamber between the boiler and the said plates, a delivery-pipe connected to the said chamber, hot-air pipes extending through the cars and provided with valves for regulating the passage of air, flexible couplings connecting the said pipes, and an air-pump for supplying the air, substantially as and for the purpose set forth.

2. The combination of a locomotive boiler, an outer casing of plates, perforated girders supporting the plates, and thereby forming an air-chamber between the boiler and the said plates, a delivery-pipe connected to the said chamber, hot-air pipes extending through the cars and provided with valves for regulating the passage of air, flexible couplings connecting the said pipes, a steam-jet in the said delivery-pipe for heating the air and forcing it through the pipes, and an air-pump for supplying the air to the pipes, substantially as and'for the purpose set forth. a

3. The combination of the heating-chamber B, surrounding the boiler and provided with semicircular girders I), having lateral air-perforations b and bolts b", the non-conducting covering 0, the air-pump D, connected to the lower front end of the said chamber by the airdelivery pipe d, and the pipe E, connected to the upper rear end of the said chamber for supplying the hot air to the cars, substantially as and for the purpose set forth. In testimony whereof I aflix my signature in presence of two witnesses.

PATRICK FRANCES MCGEE. Witnesses:

D. O. LATOURETTE, H. B. MoCoWN. 

